The Acadian motto is “L’union fait la force” (Strength through Unity).
Both were adopted in Miscouche, Prince Edward Island in 1884, during the second National Acadian Convention. The choice of these symbols was reviewed by members of the Commission of the national anthem and flag, who then formulated the following proposal, adopted unanimously by all delegates:
“It has been proposed and seconded that the insignia which will be worn on lapels during festivities be a strip of blue silk cloth on which a star surrounded by rays will be embossed. Underneath it will appear a vessel in full sail, bearing the word Acadie on the flag. The motto on the bottom will read “L’union fait la force“. The insignia will be crowned with a red and white rosette.” [Unofficial translation]
The Acadians hardly used the insignia. In fact, only one seems to have been preserved at the Musée acadien de l’Université de Moncton. It can be seen on a photograph from the Collection des Pères Eudistes, preserved at the Provincial Archives of New Brunswick, and it is worn by Dr. Félix Comeau, President of the Executive Committee of the fifth Convention, which was held in Caraquet, New Brunswick in 1905.
The motto, however, appeared more often. The Acadians used it sometimes in speeches and for decor during festivities, religious ceremonies or conventions. L’Impartial (1893-1915), the first French language newspaper to be published on Prince Edward Island, used it as its own motto. Today, it is not very well known as a national motto among the Acadians.(“Un peuple à unir“, special issue of La Petite Souvenance to mark the Acadian flag’s Centennial, 1884-1984, published by the Société historique acadienne de l’Île-du-Prince-Édouard.)